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prusa3d / Prusa-Firmware

Firmware for Original Prusa i3 3D printer by PrusaResearch
GNU General Public License v3.0
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[QUESTION]<MMU2S with firmware 3.0.0 service menu> #4292

Closed DesC21 closed 1 year ago

DesC21 commented 1 year ago

I just updated my MMU2s to the new 3.0.0 firmware. I am running the MMU outside of my enclosure, so the PTFE from the MMU2 to the printer is longer than the stock one. The old firmware had the service menu (https://help.prusa3d.com/guide/service-menu-individual-filament-calibration_86376), where I could set my custom length. But I can't enter the service menu on the newest version. Is there a change on how to set the length?

thanks in advance

3d-gussner commented 1 year ago

@DesC21 Does the MMU3 in your setup work? Can you share a picture and add more details how long your PTFE tube is.

DesC21 commented 1 year ago

@DesC21 Does the MMU3 in your setup work? Can you share a picture and add more details how long your PTFE tube is.

Thanks for your answer. Yes, it works fine but filament changes take a lot longer than they could/should, which adds up quickly. My PTFE tube is ~70cm long.

  1. loading: On a load it "fast" feeds for about 30cm I guess (I haven't measured it). Then it slowly continues to feed filament until it reaches the extruder and the sensor on the extruder triggers. Works fine but the loading takes really long.

  2. unloading: it unloads fast until about 15cm of filament is left in the ptfe tube. Then it tries to move the idler, doesn't work and continues to fast unload until the finda is not triggered anymore.

This is how my setup looks, so yes works fine apart from wasting a lot of time on load :). MMU3_:setup

From what I see in the firmware it appears these load/unload values are hardcoded now and can't be set on the MMU/printer anymore, right?

ainuke commented 1 year ago

I have the same issue/question, FWIW.

3d-gussner commented 1 year ago

FYI we are working on a solution to be able to change the bowden length. Please don't ask WHEN we gonna release that version!

Kugelfang666 commented 1 year ago

add me in, same issue for my setup, looking forward to a fix and happy to test in case you have a beta version

3d-gussner commented 1 year ago

Thanks for reporting. See https://github.com/prusa3d/Prusa-Firmware/pull/4322

Please consider to close this request.

DesC21 commented 1 year ago

Thanks for reporting. See #4322

Please consider to close this request.

awesome, thank you very much! Looking forward to test it :-)